Would be great, if it didn't have a low-headroom frontend that clips, introducing nasty digital artifacts. A lot of the point of a Deluxe is slamming it with pedals; can't really do that here. With an active pickup guitar, I couldn't actually get it to be clean.
Also, UA's terms of service means that they could revoke my access to the necessary app because they don't like this review. Won't matter to me - I refuse to give them any further money while such an egregious policy is in place. The pedal - when it was approached gently - does sound great. My original review is below, untouched. :)
Original continues below.
Better than the real thing? Eh, who cares: it's delightful, sounds and feels great, and allows for classic cranked California sounds without reaching volumes that will explode household pets.
Reverb sounds right.
Tremolo sounds right.
Feels responsive.
Even has the same overpowering bass response when cranked (cutting lows before hitting the amp is recommended: but the result is a sludgy grunge tone that would make your flannel shirts proud)
It's quite good!